<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        //遍历数组
        let arr = ['马超', '赵云', '张飞', '关羽', '黄忠']
        arr.forEach((item, index) => {
            console.log(`arr[${index}]=${item}`)
        });
    </script>
</body>

</html>